小地老虎是我县春植烤烟返苗期至团棵期的主要害虫。4月上旬至5月中旬发生,4月中旬至5月上旬为害最重,受害严重的田块每株烟的根有幼虫3—5条,断棵率可达30％以上,严重影响烤烟的全苗。我站多次多点试验结果表明,采用50％甲胺磷1400-1750倍液,每株250—300毫升晴天灌蔸防治小地老虎效果很好,平均保苗效果为 Small tiger is my county spring planting tobacco back to seedling period seedling pests. April early April to mid-May, from mid-April to early May the hardest hit, severely damaged plots of tobacco root 3-5 per larvae, broken down rate of up to 30%, seriously affecting the flue-cured tobacco All seedlings. I stand a number of more trial results show that the use of 50% methamidophos 1400-1750 times, 250-300 ml per plant sunny day irrigation control of small tiger good effect, the average seedling effect is